Kubetail has a Cross-Site WebSocket Hijacking issue that allows attacker to read Kubernetes logs from authenticated users

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

6.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS

• CVE-2026-44514: 0.17% estimated exploitation activity in the next 30 days; percentile 6.44 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Summary Kubetail's dashboard exposes WebSocket endpoints that did not adequately validate the Origin header on connection upgrade. A malicious web page visited by a user with an active Kubetail session could open a WebSocket to the user's dashboard and read their Kubernetes logs in real time. This is a Cross-Site WebSocket Hijacking (CSWSH) vulnerability and affects both the desktop deployment (default http://localhost:7500) and cluster deployments (typically behind an Ingress with HTTP basic auth). Impact An attacker who can convince an authenticated Kubetail user to visit a page they control can: - Establish a WebSocket connection to the victim's dashboard from the attacker's origin - Stream container logs the victim has access to via the Kubernetes API - Exfiltrate the contents to an attacker-controlled server The attacker gains read-only access to logs — no write or destructive operations are exposed. However, container logs frequently contain credentials accidentally written by…

Published by the source

7 May 2026, 02:34 UTC

Last modified by the source

14 May 2026, 20:54 UTC

Source last checked

26 Oct 2026, 15:22 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-v8j7-hp7c-738f

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# Patch Next advisory brief: CVE-2026-44514

Advisory: Kubetail has a Cross-Site WebSocket Hijacking issue that allows attacker to read Kubernetes logs from authenticated users
IDs: CVE-2026-44514, GHSA-v8j7-hp7c-738f
Record: https://patchnext.com/advisories/cve-2026-44514 (revision 1, source checked 26 Oct 2026, 15:22 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.5)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: github.com/kubetail-org/kubetail/modules/dashboard 0.14.0; github.com/kubetail-org/kubetail/modules/cli 0.16.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- Go github.com/kubetail-org/kubetail/modules/dashboard: affected < 0.14.0; fixed in 0.14.0
- Go github.com/kubetail-org/kubetail/modules/cli: affected < 0.16.0; fixed in 0.16.0

## Suggested inspection (read-only)
- Go github.com/kubetail-org/kubetail/modules/dashboard: check the installed version with your package manager.
- Go github.com/kubetail-org/kubetail/modules/cli: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on github.com/kubetail-org/kubetail/modules/dashboard, github.com/kubetail-org/kubetail/modules/cli.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-v8j7-hp7c-738f (GitHub-reviewed advisory GHSA-v8j7-hp7c-738f lists affected ranges: Go github.com/kubetail-org/kubetail/modules/dashboard >=0 =0 <0.16.0)

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